refrigerator 1 adj. It applies to what refrigerates or serves to refrigerate. 2 (in C. Rica, Ec., Peru is also used in f.) M. Apparatus or installation to keep things inside at a low temperature: An electric refrigerator, an electric refrigerator . Combi, frigidaire, refrigerator, refrigerator, icebox, refrigerator. Or to cool the environment of a room or an enclosure.